Drop Four

Play:

Full screen Touch: Tap a column to drop your piece into it · Keyboard: Click a column with the mouse; U to undo, R to restart, Esc to pause

About:

A clean Connect Four implementation with Player vs AI (a real minimax-style opponent, not random), local Player vs Player, and an AI vs AI spectator mode. Tap-to-drop touch controls were confirmed working correctly on a real touch profile with no fixes needed.

Credits:

Made by Connect Four with a real AI opponent, 2024. Published here under the MIT licence. Source code.

Phone check: 2026-09-07: played on simulated phone (390x844, real CDP touch dispatch) and desktop (mouse); confirmed tapping/clicking a column correctly drops a piece into the right slot and advances the turn, no fixes needed to the shipped build.

Play next:

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Caro Board (Gomoku) Get five in a row before your opponent - play a friend locally or a responsive CPU.

Tags:

board · strategy · connect-four · ai